html,
body,
ul,
li,
dl,
dt,
dd,
p,
figure,
figcaption,
h1,
h2,
h3,
img,
input,
form,
p,
figure {
    margin: 0;
    padding: 0;
}

ul{
    list-style: none;
}

a {
    text-decoration: none;
}
h1{
    font-weight: normal;
}

html,body{
    height: 100%;
}

body{
    display: flex;
    flex-direction: column;
}




header{
    height: 1.3rem;
    width: 100%;
    font-size: 0.2rem;
    text-align: center;
    position: relative;
    line-height: 1.5rem;
    margin: 0 0.13rem;
    .iconfont{
        font-size: 0.4rem;
        position: absolute;
        left: 0;
        top: 0;
    }
}
section{
    flex: 1;
    overflow: auto;
    font-size: 0.3rem;
    nav{
        height: 0.5rem;
        ul{
            display: flex;
            justify-content: space-around;
            li{
                position: relative;
               &:hover span{
                   opacity: 1;
               }
                span{
                    width: 100%;
                    height: 0.05rem;
                    border-radius: 0.4rem;
                    display: block;
                    background: #fed946;
                    position: absolute;
                    bottom: -0.15rem;
                    left: 0;
                    opacity: 0;
                    
                }
            }
        }
    }

    div{
        height: 3.26rem;
        margin: 0.3rem 0.24rem 0;
        background: #ccc;
        display: none;
        img{
            height: 3.26rem;
            width: 100%;
        }
    }
    
}
